Today's Message Index:
----------------------
1. 12:29 AM - Yahoo! Auto Response (will@willcrook.com)
2. 03:39 AM - Low voltage/battery warning for certified aircraft (rv8ch)
3. 04:03 AM - Re: Low voltage/battery warning for certified aircraft (Neal George)
4. 04:13 AM - Re: Low voltage/battery warning for certified aircraft (Rich Dodson)
5. 04:26 AM - Re: Low voltage/battery warning for certified aircraft (BobsV35B@aol.com)
6. 04:31 AM - Battery Master On Warning (BobsV35B@aol.com)
7. 05:03 AM - Re: Amp sensing with hall effect (Richard Reynolds)
8. 06:55 AM - Re: Low voltage/battery warning for certified aircraft (JOHN TIPTON)
9. 09:06 AM - Re: Low voltage/battery warning for certified aircraft (rv8ch)
10. 09:57 AM - Re: Connector for copilot stick grip (John Burnaby)
11. 09:57 AM - Re: Marker beacon antenna for composite aircraftMarker beacon antenna for composite (John Burnaby)
12. 02:20 PM - Re: Amp sensing with hall effect (Jekyll)
Message 1
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Subject: | Yahoo! Auto Response |
Hello,
I'll be out of the country (and off-line) the week of June 18th. I'll respond
to your email as soon as possible after my return. Have a great week! Thanks,
Will Crook, CPA
Message 2
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Subject: | Low voltage/battery warning for certified aircraft |
Hi,
Some idiot in my flying club keeps forgetting to turn off the battery when he hangars
the aircraft. This doesn't make the next person who wants to fly the airplane
very happy, as you can imagine.
Do you know of a decent solution for this problem for a certified aircraft?
Thanks,
Mickey (a.k.a the idiot)
--------
Mickey Coggins
http://www.rv8.ch/
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=118702#118702
Message 3
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Subject: | Low voltage/battery warning for certified aircraft |
Mickey -
Add a step to the Shutdown checklist:
Strobes - ON
Neal
RV-7 N8ZG - Cowling
-------
Hi,
Some idiot in my flying club keeps forgetting to turn off the battery when
he hangars the aircraft. This doesn't make the next person who wants to fly
the airplane very happy, as you can imagine.
Do you know of a decent solution for this problem for a certified aircraft?
Thanks,
Mickey (a.k.a the idiot)
--------
Mickey Coggins
http://www.rv8.ch/
Message 4
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Subject: | Re: Low voltage/battery warning for certified aircraft |
Mickey,
My FBO tells us all to leave the beacon "ON" all the time. That way, when the
battery side of the master is "ON", the beacon is rotating and lit up. When I
walk away from the airplane for the last time, I check the sound from the Turn
Coordinator to make sure it is slowing down and then I check the beacon to make
sure it is dark.
Been there, done that!
Rich
----- Original Message ----
From: rv8ch <mick-matronics@rv8.ch>
Sent: Saturday, June 16, 2007 6:37:40 AM
Subject: AeroElectric-List: Low voltage/battery warning for certified aircraft
Hi,
Some idiot in my flying club keeps forgetting to turn off the battery when he hangars
the aircraft. This doesn't make the next person who wants to fly the airplane
very happy, as you can imagine.
Do you know of a decent solution for this problem for a certified aircraft?
Thanks,
Mickey (a.k.a the idiot)
--------
Mickey Coggins
http://www.rv8.ch/
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=118702#118702
Message 5
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Subject: | Re: Low voltage/battery warning for certified aircraft |
Good Morning Mickey,
Put a certified oil pressure actuated switch in parallel with the strobe
light switch. Wire it so that the strobes go on any time the master is on and
the oil pressure is non existent. That way, the strobes will be on as you leave
the aircraft. The disadvantage is that your strobes will come on before you
start the engine.
There could be some advantage to that happening as it will warn others that
the engine is about to be started!
Some airlines make a practice of turning on their rotating beacons before
engine start. A rotating beacon wired as suggested would also work as a memory
jogger, but I like the idea of the strobe better!
On one of our glider tow planes, we have a warning whistle that has a time
delay built into a small electronic circuit. It is actuated by the oil pressure
switch, but the time delay keeps it from sounding during the engine start
process. However, I am not convinced that the warning horn and it's electrical
timer meet certification standards. Probably does and who really cares as
long as it reminds our pilots to shut off the master!
Happy Skies,
Old Bob
AKA
Bob Siegfried
Ancient Aviator
Stearman N3977A
Brookeridge Air Park LL22
Downers Grove, IL 60516
630 985-8503
In a message dated 6/16/2007 5:40:59 A.M. Central Daylight Time,
mick-matronics@rv8.ch writes:
Do you know of a decent solution for this problem for a certified aircraft?
Thanks,
Mickey (a.k.a the idiot)
--------
Mickey Coggins
http://www.rv8.ch/
************************************** See what's free at http://www.aol.com.
Message 6
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Subject: | Battery Master On Warning |
Good Morning Mickey,
Put a certified oil pressure actuated switch in parallel with the strobe
light switch. Wire it so that the strobes go on any time the master is on and
the oil pressure is non existent. That way, the strobes will be on as you leave
the aircraft. The disadvantage is that your strobes will come on before you
start the engine.
There could be some advantage to that happening as it will warn others that
the engine is about to be started!
Some airlines make a practice of turning on their rotating beacons before
engine start. A rotating beacon wired as suggested would also work as a memory
jogger, but I like the idea of the strobe better!
On one of our glider tow planes, we have a warning whistle that has a time
delay built into a small electronic circuit. It is actuated by the oil pressure
switch, but the time delay keeps it from sounding during the engine start
process. However, I am not convinced that the warning horn and it's electrical
timer meet certification standards. Probably does and who really cares as
long as it reminds our pilots to shut off the master!
Happy Skies,
Old Bob
AKA
Bob Siegfried
Ancient Aviator
Stearman N3977A
Brookeridge Air Park LL22
Downers Grove, IL 60516
630 985-8503
In a message dated 6/16/2007 5:40:59 A.M. Central Daylight Time,
mick-matronics@rv8.ch writes:
Do you know of a decent solution for this problem for a certified aircraft?
Thanks,
Mickey (a.k.a the idiot)
--------
Mickey Coggins
http://www.rv8.ch/
************************************** See what's free at http://www.aol.com.
Message 7
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Subject: | Re: Amp sensing with hall effect |
I ran the M-Bus, E-Bus and feed from the Battery contactor thru the
hall sensor. I want to read amps being used. I don't care about amps
to the battery being charged. If the bus voltage is above 13,5, the
battery is charging.
Be sure to run the wires thru the hall sensor in the same "sense", ie
+ to -, or else you will subtract one of the amp values.
Richard Reynolds
On Jun 5, 2007, at 2:33 AM, Jekyll wrote:
>
> I started witring up my hall sensor tonight but thought I should
> get a peer review on my electrical monitoring concept before I go
> further. My particulars are:
> RV-7A
> Z-13/8 with fuse blocks
> GRT EIS-4000
> GRT Horizon 1 EFIS (single)
> P-Mag, E-Mag
>
> I wired up a single hall effect sensor with 3 wires going through
> it: M-bus feed from a FW mounted ANL; B-bus feed from the hot side
> of the battery contactor; SD-8 feed from the SD-8 relay to the B-
> bus. My architecture is based on the ability to read total bus
> amperage on 1 sensor in both primary and alternate operating modes.
> Operating in either mode will show the total amps: in primary mode
> the M-bus and B-bus will be totaled (of course the M-bus will
> include the E-bus through the diode); in alternate mode, the SD-8
> feed will be added to the sensor on its way to the B-bus, thense to
> the E-bus. Battery charging can be determined by subtracting total
> bus amps from the alternator output to determine amps available to
> charge the battery. As I have both the SD-8 and a P-mag, I'm less
> concerned about knowing the exact in/out amperage condition of the
> battery than I am with knowing my actual bus amps when operating on
> the SD-8. I don't desire to add a second sensor or a switching!
> capability.
>
> The GRT system will show bus voltage with ample low voltage warning
> in all operating modes.
>
> Just asking for comments to see if I missed anything before I
> commit the acts of cutting, stripping, crimping, soldering and
> drilling.
>
> Thanks,
>
> Jekyll
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=116592#116592
>
>
Message 8
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Subject: | Re: Low voltage/battery warning for certified aircraft |
All our club (certified) aircraft have the beacon wired into the battery
switch: when you walk away give the plane one more backward look and if it's
winking at you, you've left your master on.
John
----- Original Message -----
From: "rv8ch" <mick-matronics@rv8.ch>
Sent: Saturday, June 16, 2007 11:37 AM
Subject: AeroElectric-List: Low voltage/battery warning for certified
aircraft
>
> Hi,
>
> Some idiot in my flying club keeps forgetting to turn off the battery when
> he hangars the aircraft. This doesn't make the next person who wants to
> fly the airplane very happy, as you can imagine.
>
> Do you know of a decent solution for this problem for a certified
> aircraft?
>
> Thanks,
> Mickey (a.k.a the idiot)
>
> --------
> Mickey Coggins
> http://www.rv8.ch/
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=118702#118702
>
>
>
Message 9
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Subject: | Re: Low voltage/battery warning for certified aircraft |
All great ideas - many thanks!
--------
Mickey Coggins
http://www.rv8.ch/
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=118729#118729
Message 10
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Subject: | Re: Connector for copilot stick grip |
Run your wiring out the bottom/side of your stick to a plug that is
below your upholstery line. Use a quick disconnect pin (AC Spruce) or a
bolt for the stick. Unplug, unbolt/disconnect, stow stick, load piano.
J
do not archive
Message 11
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Subject: | Re: Marker beacon antenna for composite aircraftMarker |
beacon antenna for composite
I have a spare copper tape dipole nav antenna installed in my wing. Will
this work for a MB antenna instead?
J
Message 12
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Subject: | Re: Amp sensing with hall effect |
Thanks Richard. I did the same. Yes, I have all the trons shepparded in the same
direction.
Jekyll
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=118761#118761
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